From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:34584 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725468AbgKEMQx (ORCPT ); Thu, 5 Nov 2020 07:16:53 -0500 Subject: Re: [kvm-unit-tests PATCH v2 1/4] memory: allocation in low memory References: <1601303017-8176-1-git-send-email-pmorel@linux.ibm.com> <1601303017-8176-2-git-send-email-pmorel@linux.ibm.com> <20200928173147.750e7358.cohuck@redhat.com> <136e1860-ddbc-edc0-7e67-fdbd8112a01e@linux.ibm.com> From: Pierre Morel Message-ID: Date: Thu, 5 Nov 2020 13:16:46 +0100 MIME-Version: 1.0 In-Reply-To: <136e1860-ddbc-edc0-7e67-fdbd8112a01e@linux.ibm.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit List-ID: To: Janosch Frank , Cornelia Huck Cc: kvm@vger.kernel.org, linux-s390@vger.kernel.org, david@redhat.com, thuth@redhat.com, imbrenda@linux.ibm.comClaudio Imbrenda On 9/29/20 9:19 AM, Janosch Frank wrote: > On 9/28/20 5:31 PM, Cornelia Huck wrote: >> On Mon, 28 Sep 2020 16:23:34 +0200 >> Pierre Morel wrote: >> >>> Some architectures need allocations to be done under a >>> specific address limit to allow DMA from I/O. >>> >>> We propose here a very simple page allocator to get >>> pages allocated under this specific limit. >>> >>> The DMA page allocator will only use part of the available memory >>> under the DMA address limit to let room for the standard allocator. >>> ...snip... > > Before we start any other discussion on this patch we should clear up if > this is still necessary after Claudio's alloc revamp. > > I think he added options to request special types of memory. Isn't it possible to go on with this patch series. It can be adapted later to the changes that will be introduced by Claudio when it is final. -- Pierre Morel IBM Lab Boeblingen